- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 45/42 - Centralised routing
Patent holdings for IPC class H04L 45/42
Total number of patents in this class: 983
10-year publication summary
|
4
|
4
|
5
|
47
|
90
|
229
|
243
|
145
|
122
|
61
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 22612 |
99 |
| Hewlett Packard Enterprise Development LP | 11544 |
88 |
| Huawei Technologies Co., Ltd. | 124837 |
82 |
| VMware LLC | 6971 |
74 |
| Juniper Networks, Inc. | 3355 |
63 |
| Nippon Telegraph and Telephone Corporation | 15913 |
31 |
| Arista Networks, Inc. | 1264 |
26 |
| Ntt, Inc. | 4623 |
18 |
| Oracle International Corporation | 13683 |
17 |
| Amazon Technologies, Inc. | 28264 |
17 |
| Microsoft Technology Licensing, LLC | 54586 |
16 |
| Intel Corporation | 46292 |
15 |
| Level 3 Communications, LLC | 1247 |
15 |
| AT&T Intellectual Property I, L.P. | 10038 |
14 |
| Ciena Corporation | 2202 |
14 |
| Mellanox Technologies Ltd. | 1693 |
14 |
| VeloCloud Networks, LLC | 120 |
14 |
| Ericsson | 23055 |
11 |
| Sumitomo Electric Industries, Ltd. | 16368 |
11 |
| Sumitomo Wiring Systems, Ltd. | 11180 |
11 |
| Other owners | 333 |